Balanced valve.



B. M. ASLAKSON. BALANCED VALVE. A'PiLIOATION FILBI? 001 14, 1907.

Patented M51117, 1911.

INVENTQR WITNESSES:

B. M. ASLAKSON.

BALANCED VALVE.

APPLIOATIOH FILED 00114, 1907.

985,879; Patented Mar.'7,, 1911.

2 SHEETS-SHEET 2.

lIIIIIII// ////IIII casing.

an exhaust valve for gas engines, I prefer chiral) STATES PATENT OFFICE.

. BAXTER M. ASLAKSON, oF' SALEM, c1110,

BALANCED VALVE.

T 0 all whom it may concern:

Be it known that I, BAXTER M. .ASLAKSON, a citizen of the United States, and a resident of Salem, in the county of (,olumbiana and struction, though it may beused without the cooling provision in cases where this feature is not required, and a further object is to provide a casing or housing for the valve which may be easily removed from the euginc or other device on which it may be located, and to have provision for cooling the valve casing.-

Referring to the drawings which form apart of this specification,-Figurc 1, is a sectional view through my valve and a section of the cylinder of a gas engine, showing the valve as applied to a gas engine for use as an exhaust valve. Fig. 2, is a cross sectional view through the valve on line a, m of Fig. 1 a

A, indicates a section of a gas engine cylinder and A, a chamber serving as a water jacket.

B, refers to the valve casing and B, a chamber serving as a water acket. seat C, is preferably formed integral with and is supported from the lower end of the casing in such a manner as to form an annular chamber D, which has an outlet 1);

The valve proper E, consists of a cylindrical ring, the lower end E of which is formed to serve as the valve face and effect a tight joint when in contact with valve seat C. The surface of the ring may be provided with grooves for the reception of packing rings to provide a tight. sliding joint in the cylindrical -When the invention is to be used as to make the ring constituting the body of the valve, with a double wall as shown. thus presenting an annular chamber l which is in open communication with a. conduit G" formed in the valve stem G by way ofthe hollow spokes H-II, as indicated by the Specification of Letters Patent.

Application filed October 14, 1907. Serial No.397,412.

A valve ortion B of the valve Patented Mar. 7, 1911.

dotted lines, the construction being readily understood.

An outlet from the annular chamber F is indicated at F, and communicates through a pipe I with the chamber F at its upper end. The pipe I is inserted in the chamber through an opening which is closed by the plug J. The function of the pipe I is to cause the water within chamber F to rise to the top of said chamber before it can overflow through the, outlet F and thereby cool the valve ring E. A guide-way B, is-

formed in' the casing B througlrwhich-the stem G projects, and a stuffing-box K is provided to prevent-leakage around the valve rod G at this point; The casing is provided with a. flange 13*, having holes B, etc, through which-bolts are inserted to hold the casing B to the cyl'inderA.

The oppratioii' of the device is as follows: Gases w thin the cylinder A will pass through the ring E and exert a balancing ctl'ect. outhc top and bottom walls of the chamber F,'with the exception of the area represented by the width of the valve face E, where it rests on the valve seat C, therefore, the only pressure of gases tending to hold the valve in an unbalanced position would be the area represented by said face of the valve and the area of the diameter of the valve stem G. l-Vhen the valve ring E is raised, thus opening the valve, the gases will flow from the cylinder A, past the spokes ll of the valve ring E, into the ahuular discharge chamber D and through the outlet D to the atmosphere. The circulation through the valve ring will be through the conduit in the valve stem G,

pcraturcs, will lxa causcd to move in correct a-linement with the valve face of the ring E, thus avoiding liability of leakage due to change of temperature.

llaving thusdcscribed my invention, what. I claim as new anddcsirc to secure by Letters Patent, is,

1, A balanced valve comprising a casing having a'cylindrical bore and a valve seat, and a ring slida-bly mounted in said bore, said ring having an annular water chamber formedtherein and constructedtoform the sole passage for vthe exhaust "gases and en-' gage said' valve seat' with its lower end, a cross bar extending from one side of said ring to the opposite side and having a conduit in open communication with said annular chamber, and a valve stem having a conduit therein in open commumcation with said first named conduit and chamber, said annular chamber having an outlet therefrom for the purpose set forth.

'2. A balanced valve comprising; 'a hollow ring mounted in the exhaust passage of an engine to be reciprocated therein, and having a central opening for the passage of the. ex

aust gases from said e ngine, said ring hav ng an annular .water chamber having conduits leading thereto; a valve rod having a central water passage leading to. said annular chamber; a dramage device located in said chamber to drain the same from near the top; and suitable packing-on the outside of said ring to prevent the passage of the exhaust gases exceptlthrough the central passage in the said j ring.

1 A balanced valve comprising a casing having a cylindrical bore provided with an inlet at one end and an outlet at its opposite end, and having a valve seat located' adjacent to said outlet; a ring adapted to slidingly engage said bore and its lower end engage said valve seat, said ring having an annular chamber formed in its Wall; avalve stem" connected to said ring and having a having a cylindrical bore provided with an inlet at one end and an outlet at its opposite end, and having a valve seat located adjacent to said outlet, andhavin a chamber formed in its well; a ring a apted to slidingly engage said bore and its lower end engage saidvalve seat, said ring having an annular chamber formed in its wall; a valve stem connected to said ring and havinga passage which communicates with said annular chamber, said ring having an outlet? from said annular chamber opening into said first named outlet.

Signed 'at Salem, in the county of Colum 'biana and State of Ohio, this 16th day of September A; D. 1907.

' 'BAXTER M. ASLAKSON. Witnesses: I'LARRY DEWER,

R. B. CAREY, 

